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Update makepath to remove PATH_MAX usage

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The start of a few commits to remove some PATH_MAX usage from our code. Use
a dynamically allocated string instead.

Signed-off-by: Dan McGee <dan@archlinux.org>
This commit is contained in:
Dan McGee 2008-05-04 18:39:22 -05:00
parent 2edd01a973
commit b49fc504ac
2 changed files with 41 additions and 32 deletions
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46
lib/libalpm/util.c
View File

@ -185,34 +185,38 @@ int _alpm_makepath(const char *path)
/* does the same thing as 'mkdir -p' */ /* does the same thing as 'mkdir -p' */
int _alpm_makepath_mode(const char *path, mode_t mode) int _alpm_makepath_mode(const char *path, mode_t mode)
{ {
char *orig, *str, *ptr; /* A bit of pointer hell here. Descriptions:
char full[PATH_MAX] = ""; * orig - a copy of path so we can safely butcher it with strsep
mode_t oldmask; * str - the current position in the path string (after the delimiter)
* ptr - the original position of str after calling strsep
oldmask = umask(0000); * incr - incrementally generated path for use in stat/mkdir call
*/
char *orig, *str, *ptr, *incr;
mode_t oldmask = umask(0000);
int ret = 0;
orig = strdup(path); orig = strdup(path);
incr = calloc(strlen(orig) + 1, sizeof(char));
str = orig; str = orig;
while((ptr = strsep(&str, "/"))) { while((ptr = strsep(&str, "/"))) {
if(strlen(ptr)) { if(strlen(ptr)) {
struct stat buf; struct stat buf;
/* we have another path component- append the newest component to
strcat(full, "/"); * existing string and create one more level of dir structure */
strcat(full, ptr); strcat(incr, "/");
if(stat(full, &buf)) { strcat(incr, ptr);
if(mkdir(full, mode)) { if(stat(incr, &buf)) {
FREE(orig); if(mkdir(incr, mode)) {
ret = 1;
break;
}
}
}
}
free(orig);
free(incr);
umask(oldmask); umask(oldmask);
_alpm_log(PM_LOG_ERROR, _("failed to make path '%s' : %s\n"), return(ret);
path, strerror(errno));
return(1);
}
}
}
}
FREE(orig);
umask(oldmask);
return(0);
} }
#define CPBUFSIZE 8 * 1024 #define CPBUFSIZE 8 * 1024

35
src/pacman/util.c
View File

@ -121,33 +121,38 @@ int getcols()
/* does the same thing as 'mkdir -p' */ /* does the same thing as 'mkdir -p' */
int makepath(const char *path) int makepath(const char *path)
{ {
char *orig, *str, *ptr; /* A bit of pointer hell here. Descriptions:
char full[PATH_MAX+1] = ""; * orig - a copy of path so we can safely butcher it with strsep
mode_t oldmask; * str - the current position in the path string (after the delimiter)
* ptr - the original position of str after calling strsep
oldmask = umask(0000); * incr - incrementally generated path for use in stat/mkdir call
*/
char *orig, *str, *ptr, *incr;
mode_t oldmask = umask(0000);
int ret = 0;
orig = strdup(path); orig = strdup(path);
incr = calloc(strlen(orig) + 1, sizeof(char));
str = orig; str = orig;
while((ptr = strsep(&str, "/"))) { while((ptr = strsep(&str, "/"))) {
if(strlen(ptr)) { if(strlen(ptr)) {
struct stat buf; struct stat buf;
/* we have another path component- append the newest component to
/* TODO we should use strncat */ * existing string and create one more level of dir structure */
strcat(full, "/"); strcat(incr, "/");
strcat(full, ptr); strcat(incr, ptr);
if(stat(full, &buf)) { if(stat(incr, &buf)) {
if(mkdir(full, 0755)) { if(mkdir(incr, 0755)) {
free(orig); ret = 1;
umask(oldmask); break;
return(1);
} }
} }
} }
} }
free(orig); free(orig);
free(incr);
umask(oldmask); umask(oldmask);
return(0); return(ret);
} }
/* does the same thing as 'rm -rf' */ /* does the same thing as 'rm -rf' */