faa52bdcc0
Make use of strerror(errno) and format all errors equally: function ['parameters']: error message
27 lines
487 B
C
27 lines
487 B
C
/* See LICENSE file for copyright and license details. */
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include "../util.h"
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const char *
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run_command(const char *cmd)
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{
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char *p;
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FILE *fp;
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fp = popen(cmd, "r");
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if (fp == NULL) {
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fprintf(stderr, "popen '%s': %s\n", cmd, strerror(errno));
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return NULL;
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}
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p = fgets(buf, sizeof(buf) - 1, fp);
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pclose(fp);
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if (!p)
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return NULL;
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if ((p = strrchr(buf, '\n')) != NULL)
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p[0] = '\0';
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return buf[0] ? buf : NULL;
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}
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